Cardiac paragangliomas.

Area of Science:

• Cardiology
• Oncology
• Pathology

Background:

• Cardiac paragangliomas are rare neuroendocrine tumors arising from paraganglia in or near the heart.
• These tumors can present with diverse and sometimes vague clinical symptoms, making diagnosis challenging.
• Existing literature is fragmented, primarily consisting of isolated case reports.

Purpose of the Study:

• To consolidate and analyze existing clinical data on cardiac paragangliomas.
• To provide a comprehensive overview of the clinical presentation, diagnostic modalities, and therapeutic strategies.
• To discuss the outcomes and prognostic factors associated with cardiac paragangliomas.

Main Methods:

• A systematic review of published literature was conducted.
• Data from 158 patients with cardiac paraganglioma, reported across 132 isolated papers, were extracted and analyzed.
• Key data points included clinical features, imaging findings, pathological characteristics, tumor location, treatment interventions, and patient outcomes.

Main Results:

• Cardiac paragangliomas exhibit varied clinical presentations, often mimicking other cardiac conditions.
• Characteristic imaging findings across different modalities aid in diagnosis.
• Pathological review confirms the neuroendocrine origin, with specific grading and staging information.
• Tumor location within the heart influences surgical approaches and outcomes.
• Therapeutic strategies range from surgical resection to medical management, with outcomes varying based on tumor characteristics and treatment efficacy.

Conclusions:

• Cardiac paraganglioma, though rare, requires a high index of suspicion for timely diagnosis.
• Multimodality imaging and pathological examination are crucial for accurate characterization.
• Tailored therapeutic approaches based on individual patient and tumor factors are essential for optimizing outcomes.
• Further collaborative efforts and data sharing are needed to enhance understanding and management of this rare entity.